Test grading machine



June 13, WW J. s. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet 1 Filed July 18, 1963 1967 J.-s. $HAW ETAL. 3,324,576

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June 13, WE? J. s. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet :5

Filed July 18, 1963 June H3, 1%? J. 5;. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet 4 Filed July 18, 1963 June 13, 1937 J. 5. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet s Filed July 18, 1963 FOE Q2 Q Q. 8m 3w Q m NC 0 @VW ON TV F m mw a r o D000 2 0 hm 2 Tmw @M a m o: m w 5 E D 5 8m 8w mm M mi gm 5 V J I )N N (mm Q1 55 wow \Q Q A oom m 62 m2 v2 09 om l wo wmm J mmm 3m r I mm hm K a r 0% mt wmm mm m m8 8m mm mom mw 2m EN EN June 1967 J. 5. SHAW ETAL.

TEST GRADING MACHINE 21 Sheets-Sheet 6 Filed July 18, 1963 2N mm J7me 1967 J. 5. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet 7 Filed July 18, 1963 June 167 .a. s. SHAW ETAL TEST GRADING MACHINE Filed July 18, 1963 21 Sheets-Sheet 8 June l3, 1%? .J. 5. SHAW ETAL TEST GRADING MACHINE Filed July 18, 1963 21 Sheets-Sheet 9 9m m &

June 13, 1967 J. 5. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet 10 Filed July 18, 1963 J M u r om W mom ' June H3, 1%? J. 5. SHAW ETAL TEST GRADING MACHINE Filed July 18, 1965 21 Sheets-Sheet 11 W a w M M 19 nn m5 an EU nfizinn anni-man 21 Sheets-Sheet 13 Filed July 18. 1965 v W26 i June 13, 1

Filed July 18, 1963 J. S. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet 15 Mm 197 J. s. SHAW ETAL. 3524,57

TEST GRADING MACHINE Filed July 18., 1965 21 Sheets-Sheet 4,

21 Sheets-Sheet 15 Filed July 18, 1965 3 f L I II II Mme J. 5. SHAW ETAL 3,324,571

TEST GRADING MACHINE Filed July 18, 1963 21 Sheets-Sheet 16 J. S. SHAW ETAL TEST GRADING MACHINE June 113, 19%? 21 Sheets-Sheet 17 Filed July 18, 1963 June 13, 16? J. s. SHAW ETAL 5 TEST GRADING MACHINE Filed July 18, 1965 21 Sheets-Sheet 18 I I II H I TP"! LJ J J FIG 51 FIG-5O 2728 25 NAME] 'SUBJECT Li D June 13, 11967 J. 5. SHAW ETAL 3,324,576

TEST GRADING MACHINE Filed July 18, 1965 21 Sheets-Sheet 19 June; 13, 1%? J. 5. SHAW ETAL TEST GRADING MACHINE 21 Sheets-Sheet 20 Filed July 18, 1963 MMZmD 06233 29m mmm M 2955 Gl e wzfiawm 22 A .Efim Ha ai A 0mm m mwm new 29 mwm mmQE

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1. IN A TEST GRADING MACHINE: A SINGLE ROTATABLE DRUM HAVING SPACED APART INDICIA INDICATIVE OF CORRECT TEST ANSWERS CARRIED ON ITS SURFACE, SAID DRUM ADAPTED TO CARRY ABOUT ITS CIRCUMFERENCE ONE AT A TIME CONSECUTIVELY FED STUDENT ANSWER SHEETS HAVING TEST ANSWERS MARKED THEREON, MEANS FOR FEEDING CONSECUTIVE UNSCORED STUDENT SHEETS ONTO SAID DRUM; MEANS TO SENSE THE CORRECT TEST ANSWERS; SEPARATE MEANS TO SENSE THE ANSWERS ON EACH OF SAID CONSECUTIVELY FED STUDENT SHEETS AS IT IS CARRIED ON SAID DRUM; MEANS FOR COMPARING THE ANSWERS ON EACH OF SAID STUDENT SHEETS WITH THE CORRECT TEST ANSWERS; AND MEANS FOR SCORING THE ANSWERS ON EACH OF SAID STUDENT SHEETS INDIVIDUALLY, SAID SCORING MEANS INCLUDING MEANS FOR MARKING EACH OF SAID STUDENT SHEETS, SAID MARKING MEANS BEING SUPPORTED ADJACENT TO THE PERIPHERY OF SAID DRUM, AND SAID MARKING MEANS BEING RESPONSIVE TO SAID COMPARING MEANS. 